I have the same problem regarding google home integration. When I try, I get the " couldnt update the setting. Check your connection" message.
I tried U.S. and singapore server. I am on singapore server now
I did reboot google home
Reset the app
I use 2.4Ghz wifi
I use yeelight color bulb (RGBW Wifi)
None of them worked.
My ID is 1817075237